High Strain Rate Testing

High Strain Rate Testing and Modeling of Polymeric Materials

Polymeric materials are frequently required to endure impact events with strain rates exceeding 100/s. However, despite this requirement, there is frequently little information available on the mechanical behavior of a material above strain rates of 1-10/s.

Veryst Engineering has developed a comprehensive suite of services for testing, modeling and validating the high strain rate behavior of polymeric materials. Veryst can test the tensile and compressive behavior of a wide variety of polymeric materials over strain rates ranging from 10-3 – 104/s combining traditional test techniques with advanced, high strain rate techniques such as Split Hopkinson Pressure Bar (SHPB) and instrumented impact testing.

Experimental data (solid lines) and predictions (dashed lines) given
by a calibrated constitutive model for an unfilled PEEK material across
seven decades of strain rate. The calibrated model shown is the Three
Network Model (TNM), available as part of Veryst Engineering’s PolyUMod
library.

Veryst’s high strain rate testing and modeling capabilities are suitable for a wide variety of polymeric materials, including:

Veryst also uses its knowledge of high strain rate testing in the design and implementation of validation tests that can be used to ensure that material models are sufficiently accurate for their intended application.

More Information

For more information on designing a high-strain rate testing, modeling and validation program for your material, please click the button below:

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Case Study: High Strain Rate Testing of Polymers

This case study demonstrates the testing and calibration of a Polycarbonate material at a high strain rate of 1000 sec-1. The testing was done with the Split Hopkinson Pressure Bar (SHPB) system and the calibration is performed with Veryst Engineering’s MCalibration software.

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